The word in-exhaustibility refers to something that cannot be exhausted or depleted, and there are several synonyms that can replace it. One such word is inexhaustibleness, which means the same thing as in-exhaustibility. Other alternatives include boundlessness, limitlessness, infinity, and endlessness. These words all convey the idea of something that has no limits or boundaries and cannot be exhausted. They are often used to describe things like creativity, energy, or resources. For instance, creativity is often referred to as a source of in-exhaustibility because it is something that can be tapped into indefinitely without running out. In-exhaustibility is a powerful concept that suggests a wealth of abundance that cannot be depleted, and these synonyms help convey that idea.